CVE-2026-76743 Authentication Bypass Vulnerability in the Management Interface of AOS-S

Critical 9.8 Published Updated

Unauthenticated remote attackers can bypass authentication controls in the HPE AOS-S management interface under specific preconditions, gaining unauthorized system access.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-76743?

CVE-2026-76743 is a critical authentication bypass vulnerability in Hewlett Packard Enterprise (HPE) AOS-Switch (AOS-S), published on 6 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability have been identified in the management interface of AOS-S that could potentially allow an unauthenticated remote attacker to circumvent existing authentication controls if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to gain unauthorized access to the affected system.

Weakness: CWE-287

Which versions are affected by CVE-2026-76743?

How do I fix CVE-2026-76743?

No fix has been published for CVE-2026-76743 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-76743 being exploited?

There is no known exploitation of CVE-2026-76743 in the wild and no public exploit code.

Sources

Also known as GHSA-535g-9395-6mq8.

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